Ab initio investigation of a spin-polarized two-dimensional electron gas at the BaTiO3/LaMnO3 interface

Irina Piyanzina; Rinat Mamin

Ab initio investigation of a spin-polarized two-dimensional electron gas at the BaTiO3/LaMnO3 interface

Materials Science 2022-01-25 v1

Authors: Irina Piyanzina , Rinat Mamin

Abstract

By means of ab initio calculations the possibilities of switchable spin-polarized two-dimensional electron gas (2DEG) at the interface of antiferromagnetic and ferroelectric perovskites, i.e., LaMnO3/BaTiO3 superlattice, were investigated. We demonstrate that at the heterostructure with TiO2/LaO interfacial layers the two-dimensional conducting state arises mainly localized within the interfacial MnO layer. The density of states at the Fermi-level can be tuned by ferroelectric polarization reversal. The conducting state coexists with magnetic one mainly arose from Mn atoms.

Keywords

ab initio calculations two-dimensional electron gas laMnO3/batio3 interface ferroelectric polarization spin polarization perovskite superlattice

Cite

@article{arxiv.2201.09224,
  title  = {Ab initio investigation of a spin-polarized two-dimensional electron gas at the BaTiO3/LaMnO3 interface},
  author = {Irina Piyanzina and Rinat Mamin},
  journal= {arXiv preprint arXiv:2201.09224},
  year   = {2022}
}

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